Search for dark matter in proton-proton collisions at 8 TeV with missing transverse momentum and vector boson tagged jets

The CMS collaboration

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

A search is presented for an excess of events with large missing transverse momentum in association with at least one highly energetic jet, in a data sample of proton-proton collisions at a centre-of-mass energy of 8 TeV. The data correspond to an integrated luminosity of 19.7 fb−1 collected by the CMS experiment at the LHC. The results are interpreted using a set of simplified models for the production of dark matter via a scalar, pseudoscalar, vector, or axial vector mediator. Additional sensitivity is achieved by tagging events consistent with the jets originating from a hadronically decaying vector boson. This search uses jet substructure techniques to identify hadronically decaying vector bosons in both Lorentz-boosted and resolved scenarios. This analysis yields improvements of 80% in terms of excluded signal cross sections with respect to the previous CMS analysis using the same data set. No significant excess with respect to the standard model expectation is observed and limits are placed on the parameter space of the simplified models. Mediator masses between 80 and 400 GeV in the scalar and pseudoscalar models, and up to 1.5 TeV in the vector and axial vector models, are excluded.[Figure not available: see fulltext.]

Original languageEnglish
Article number83
JournalJournal of High Energy Physics
Volume2016
Issue number12
DOIs
Publication statusPublished - 1 Dec 2016

Fingerprint

transverse momentum
dark matter
bosons
collisions
protons
scalars
substructures
marking
center of mass
luminosity
sensitivity
cross sections
energy

Keywords

  • Dark matter
  • Hadron-Hadron scattering (experiments)

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Cite this

Search for dark matter in proton-proton collisions at 8 TeV with missing transverse momentum and vector boson tagged jets. / The CMS collaboration.

In: Journal of High Energy Physics, Vol. 2016, No. 12, 83, 01.12.2016.

Research output: Contribution to journalArticle

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